Rank	Countries/Territories	Count	Percent
1	United States	419	44.2%
2	China	265	28%
3	Germany	71	7.5%
4	Japan	33	3.5%
5	Canada	28	3%
6	India	27	2.8%
7	Russia	23	2.4%
8	Korea, Republic of	14	1.5%
9	France	14	1.5%
10	Norway	13	1.4%
11	Ireland	6	0.6%
12	Cyprus	5	0.5%
13	Viet Nam	5	0.5%
14	Turkey	5	0.5%
15	Netherlands	4	0.4%
16	Italy	2	0.2%
17	Mongolia	2	0.2%
18	Singapore	2	0.2%
19	Taiwan	2	0.2%
20	Thailand	2	0.2%
21	United Kingdom	1	0.1%
22	Romania	1	0.1%
23	Australia	1	0.1%
24	Azerbaijan	1	0.1%
25	Georgia	1	0.1%
26	Hong Kong	1	0.1%